So... when I first started with yarn (last year), I didn't know about the end sticking out of the middle of the skein or ball. Obviously, I pulled it from the outside and watched my skein roll around the room as I made things, or in one case, stuck the skein in my shirt and crocheted while walking around at a party. An experienced knitter friend suggested that I pull the yarn from the centre of the skein to avoid having my yarn running all over the place, and since my early projects were mostly small hats or from small balls, it all worked out beautifully.
Nowadays, my projects are bigger: longer, wider scarves, ponchos, and the like. I find that once I've used a certain amount of the yarn from the centre of the skein, no amount of kindness will stop the skein from becoming a tangled mess that can't be fixed without cutting the yarn, untangling, and re-joining.
Is it true that pulling from the centre of the skein really isn't a good idea, or am I doing something wrong?